#region Copyright(c) 2006 ZO, All right reserved.
// -----------------------------------------------------------------------------
// Copyright(c) 2006 ZO, All right reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
//   1.  Redistribution of source code must retain the above copyright notice,
//       this list of conditions and the following disclaimer.
//   2.  Redistribution in binary form must reproduce the above copyright
//       notice, this list of conditions and the following disclaimer in the
//       documentation and/or other materials provided with the distribution.
//   3.  The name of the author may not be used to endorse or promote products
//       derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// -----------------------------------------------------------------------------
#endregion


#region Using directives
using System;
using System.Collections.Generic;
using System.Text;
using ArgumentNullException = ZO.SmartCore.Core.ArgumentNullException;
using ArgumentException = ZO.SmartCore.Core.ArgumentException;
using ArgumentOutOfRangeException = ZO.SmartCore.Core.ArgumentOutOfRangeException;
using ZO.SmartCore.Configuration;
using ZO.SmartCore.Xml;
using ZO.SmartCore.IO;
using System.Configuration;
using System.Runtime.Remoting;
#endregion

namespace ZO.SmartCore.My4CSharp
{
    /// <summary>
    /// Configuration Provider specified by Configuration file
    /// </summary>
    public class ConfigBasedConfigurationProvider : IConfigurationProvider
    {

  
        #region Constructors
        /// <summary>
        /// Initializes a new instance of the <see cref="ConfigBasedConfigurationProvider"/> class.
        /// </summary>
        public ConfigBasedConfigurationProvider()
        {
            My4CSharpConfigurationSection section = ConfigurationManager.GetSection("My4CSharp")
                as My4CSharpConfigurationSection;

            if (section != null)
            {
                string text = section.Settings.Provider;
                if (!String.IsNullOrEmpty(text))
                {
                    textArray = text.Split(',');
                }
            }
            this.Provider = CreateProvider();
        }
        #endregion

        #region Fields
        private IConfigurationProvider Provider;
        private string[] textArray;
        #endregion


        #region Methods


        /// <summary>
        /// Creates the provider.
        /// </summary>
        /// <returns></returns>
        protected virtual IConfigurationProvider CreateProvider()
        {
            if (textArray != null)
            {
                if (textArray.Length == 2)
                {
                    try
                    {
                        ObjectHandle handle = Activator.CreateInstance(textArray[1], textArray[0]);

                        if (handle != null)
                        {
                            return ((IConfigurationProvider)handle.Unwrap());
                        }
                    }
                    catch { }
                }
            }

            return new IsolatedConfigurationProvider();
        }
        #endregion


        #region IConfigurationProvider Members

        /// <summary>
        /// Get The Name of Storage used by the Provider
        /// </summary>
        /// <value>storage name.</value>
        public string Name
        {
            get { return this.Provider.Name; }
        }

        /// <summary>
        /// load the file to MemoryStream
        /// </summary>
        /// <param name="file">The file.</param>
        /// <returns>MemoryStream containing the loaded file</returns>
        public StringStream Load(string file)
        {
            return this.Provider.Load(file);
        }

        /// <summary>
        /// Gets the XML document from provider.
        /// </summary>
        /// <param name="file">The file.</param>
        /// <returns></returns>
        public Document GetXmlDocument(string file)
        {
            return this.Provider.GetXmlDocument(file);
        }

        /// <summary>
        /// Saves the XML document to provider data space .
        /// </summary>
        /// <param name="file">The file.</param>
        /// <param name="xmlDoc">The XML document to save.</param>
        public void SaveXmlDocument(string file, Document xmlDoc)
        {
            this.Provider.SaveXmlDocument(file, xmlDoc);
        }

        /// <summary>
        /// Gets all the files names in specified folder.
        /// </summary>
        /// <param name="directoryName">Name of the directory.</param>
        /// <returns>All files name in specified folder</returns>
        public string[] GetFilesNames(string directoryName)
        {
            return this.Provider.GetFilesNames(directoryName);
        }

        /// <summary>
        /// Gets all the files names in specified folder.
        /// </summary>
        /// <param name="directoryName">Name of the directory.</param>
        /// <param name="searchPattern">The search string to match against the names of files in path.</param>
        /// <returns>
        /// All files name in specified folder with specified file name
        /// </returns>
        public string[] GetFilesNames(string directoryName, string searchPattern)
        {
            return this.Provider.GetFilesNames(directoryName, searchPattern);
        }

        /// <summary>
        /// Saves the specified configuration.
        /// </summary>
        /// <param name="file">The file name to save.</param>
        /// <param name="contents">The contents.</param>
        public void Save(string file, StringStream contents)
        {
            this.Provider.Save(file, contents);
        }

        /// <summary>
        /// Creates the directory.
        /// </summary>
        /// <param name="directory">The path of the directory to create.</param>
        public void CreateDirectory(string directory)
        {
            this.Provider.CreateDirectory(directory);
        }

        /// <summary>
        /// Deletes the directory.
        /// </summary>
        /// <param name="directory">The directory.</param>
        public void DeleteDirectory(string directory)
        {
            this.Provider.DeleteDirectory(directory);
        }

        /// <summary>
        /// Deletes the File.
        /// </summary>
        /// <param name="fileName">Name of the file.</param>
        public void DeleteFile(string fileName)
        {
            this.Provider.DeleteFile(fileName);
        }

        /// <summary>
        /// Get Whether specified file exists
        /// </summary>
        /// <param name="fileName">Name of the file.</param>
        /// <returns>true if file exists else false</returns>
        public bool FileExists(string fileName)
        {
            return this.Provider.FileExists(fileName);
        }

        /// <summary>
        /// Get Whether specified directory exists
        /// </summary>
        /// <param name="directoryName">Name of the directory.</param>
        /// <returns>true if directory exists else false</returns>
        public bool DirectoryExists(string directoryName)
        {
            return this.Provider.DirectoryExists(directoryName);
        }

        #endregion
    }
}
